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nata0808 [166]
3 years ago
9

Help me please!!!!!!!!!!!!!!!! (-7n^2-8n)+(-n^2+9n+9)

Mathematics
2 answers:
Sever21 [200]3 years ago
7 0
-9n^2+n+9 is the answer....
Setler [38]3 years ago
6 0
I combined like terms! I hoped this helps

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There are 3 methods to solve this. elimination substitution and graphing but i am going to use the elimination method.
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ie... ( </u>meaning where you find y in the equation, u replace it with a 5)

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SpyIntel [72]

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Step-by-step explanation:

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Answer:

wait.. almost done...

Step-by-step explanation:

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Read 2 more answers
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